GPT-6 Sol vs Claude Sonnet 4.6

OpenAI GPT-6 SolAnthropic Claude Claude Sonnet 4.6
VendorOpenAIAnthropic Claude
Context window1,050,0001,000,000
Max output128,000128,000
ReasoningYesYes
Tool callingYesYes
File inputYesYes
Inputtext, imagetext, image, file
Outputtexttext
Released2026-09-222026-02-17